RCE in Achat Software Chat Server
CVE-2025-34127
A stack-based buffer overflow exists in Achat v0.150 in its default configuration. By sending a specially crafted message to the UDP port 9256, an attacker can overwrite the structured exception handler (SEH) due to insufficient bounds checking on user-supplied input leading to remote code execution.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.011 (62.9th percentile) — read the EPSS interpretation.
Affected products
- Achat Software Chat Server — versions 0.150
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (third-party-advisory)
- disclosure@vulncheck.com (exploit)
Frequently asked questions
- What is CVE-2025-34127?
- CVE-2025-34127 is a vulnerability in Achat Software Chat Server, classified under Code Injection. Published 2025-07-16.
- Is CVE-2025-34127 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.